| O_N_I_Z_U_K_A vs Jin | 94–133 | 41.41% |
| O_N_I_Z_U_K_A vs Kazuya | 95–125 | 43.18% |
| O_N_I_Z_U_K_A vs King | 77–101 | 43.26% |
| O_N_I_Z_U_K_A vs Hwoarang | 71–84 | 45.81% |
| O_N_I_Z_U_K_A vs Law | 66–84 | 44.00% |
| O_N_I_Z_U_K_A vs Paul | 60–74 | 44.78% |
| O_N_I_Z_U_K_A vs Eddy | 44–88 | 33.33% |
| O_N_I_Z_U_K_A vs Bryan | 57–68 | 45.60% |
| O_N_I_Z_U_K_A vs Reina | 55–67 | 45.08% |
| O_N_I_Z_U_K_A vs Yoshimitsu | 54–49 | 52.43% |
| O_N_I_Z_U_K_A vs Dragunov | 45–57 | 44.12% |
| O_N_I_Z_U_K_A vs Steve | 37–60 | 38.14% |
| O_N_I_Z_U_K_A vs Lili | 36–45 | 44.44% |
| O_N_I_Z_U_K_A vs Devil Jin | 24–52 | 31.58% |
| O_N_I_Z_U_K_A vs Nina | 44–32 | 57.89% |
| O_N_I_Z_U_K_A vs Jun | 41–33 | 55.41% |
| O_N_I_Z_U_K_A vs Azucena | 32–39 | 45.07% |
| O_N_I_Z_U_K_A vs Feng | 32–38 | 45.71% |
| O_N_I_Z_U_K_A vs Asuka | 33–23 | 58.93% |
| O_N_I_Z_U_K_A vs Lars | 31–22 | 58.49% |
| O_N_I_Z_U_K_A vs Lee | 22–31 | 41.51% |
| O_N_I_Z_U_K_A vs Victor | 11–38 | 22.45% |
| O_N_I_Z_U_K_A vs Leroy | 16–26 | 38.10% |
| O_N_I_Z_U_K_A vs Alisa | 16–24 | 40.00% |
| O_N_I_Z_U_K_A vs Jack-8 | 11–23 | 32.35% |
| O_N_I_Z_U_K_A vs Xiaoyu | 17–13 | 56.67% |
| O_N_I_Z_U_K_A vs Leo | 9–18 | 33.33% |
| O_N_I_Z_U_K_A vs Lidia | 9–15 | 37.50% |
| O_N_I_Z_U_K_A vs Clive | 14–10 | 58.33% |
| O_N_I_Z_U_K_A vs Armor King | 7–16 | 30.43% |
| O_N_I_Z_U_K_A vs Claudio | 12–10 | 54.55% |
| O_N_I_Z_U_K_A vs Heihachi | 9–13 | 40.91% |
| O_N_I_Z_U_K_A vs Kuma | 9–10 | 47.37% |
| O_N_I_Z_U_K_A vs Shaheen | 9–8 | 52.94% |
| O_N_I_Z_U_K_A vs Raven | 7–10 | 41.18% |
| O_N_I_Z_U_K_A vs Zafina | 5–11 | 31.25% |
| O_N_I_Z_U_K_A vs Anna | 6–7 | 46.15% |
| O_N_I_Z_U_K_A vs Fahkumram | 6–5 | 54.55% |
| O_N_I_Z_U_K_A vs Panda | 0–5 | 0.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.